Pipe making machine



Dec. 5, 1933.

18. J. UKROPIIINA 1,938,231

PIPE MAKING MACHINE Filed Nov. 3, 1931 2 Sheets-Sheet 1 WW INVENTOR. .B.J. UKROPINH. f r R BY ATTORNE Y.

Dec. 5, 1933. B. J. UKROPINA PIPE MAKING MACHINE Filed Nov. 3. 1931 2 Sheets-Sheet .2

INVENTOR. B4]: UKROPINR.

ATTORNEY.

Patented Dec. 5, 1 933 NT] OFFICE YPIPE MAKING MACHINE I Bozidar J. Ukropina, Los Angeles, Calif. Application November's, 1931. Serial No. 572.788 7 This invention relates to improvements in pipe making, machines. l The general object of the invention is to provide an-improved machine ior making pipes of 5 concrete-or other plastic material. 7 1 i Another object of the invention is to providea device for lining metal cylinders with a plastic material. a

A further object of the invention is to provide 10 an improved means for shaping the interior of i "Fig. 5.

a. pipe which has been made of plastic material. Other objects and the advantages. of my invention will be apparent from the following descriptiontaken in connection with the accompanying drawings wherein:

Fig. 1 is the topplan view of a'machine embodying features of my invention. t

Fig. 2 is, an enlarged fragmentary side elevar tion ofthe bucket partly in section, showing the slurry remover in .anoperative. position.

. Fig. 3 is an end view, of the packer head.

Fig. 4 is a view similar to Fig. 2" showing a modified form ofpacker-head.- i

Fig.5". is :an end view-of Fig.- 4, and Fig. 6 :is a section taken-on, line 66 of Referring vice 10 comprises a mold spinning portion which is indicated generallyat 12 and includes a supporting framework. on which I provide spaced mold supporting portions which-are indicated generally at 14, each ofwhich are similar. In

. ably formed'in a cylindrical metal shell 15 which vide mechanism which includes clamping frame 7 members 23 and endless belts 48 which are supported by suitable pulleys'dri'ven from a drive shaft 36..

The clamping frames 23 are releasably secured by means which include hand wheels 60. e

For rotating the drive shaft 3611 provide a sprocket wheel or other suitable member 61 which may be driven from any suitable source.

For placing concrete or other plastic material in the-mold 15, I- provide a bucket member 65 which is mounted on a plate 166 securedto ,a face plate 67. The face plate 67 is secured to a shaft 68 which is rotatably mountedin bearings 69 on" a car 10. The'car' 70'i'ncludes wheels 71 Adjacent the'end of the bucket 65 opposite tothe -drawings by reference charactors, I have indicated my: improved pipemakingmachine generally at 10.; As shown thedewhichare adapted to operate on rails '72. The

car 70 is preferably self propelling and for. this purpose I provide a motor 73 which may be ei- 'ther electrically or air operatedand is shown as adapted to drive a sprocket 74 through the me-"- dium of, a transmission .mechanism 75. The sprocket 74 drives a sprocket 76 which is secured to one ofthe wheel shaftsg'l'l through the medium of a sprocket chain '78.

car 70, I provide a bracket 79 having an annular flange 80 thereon extending outward from the end of thebucket and having a threaded stem. 81 also extending outward from the end of the bucket. m"

Surrounding the, stem 81., I provide an expanding packing'head 82. As shown the packing head'82 is annular and comprises two sections, onesection8 3 engaging the flange 80 of the bracket 79 and another section 84 engaging the section 83. Each of. the sections 83 and .84 are made up of a plurality of individual segments and the joints 85 of the segments of the section 84 are positioned intermediate the j0in'ts86 of the segments of the sections 83 as clearly shown in Fig. 9. v

For retaining the sections 83 and'84 in.posi' -tion, v provide-a-plurality of studs .87' on. the

flange 80; The sections-83 and 84 are each pro- ;vided with a plurality of elongated apertures .88 in whichthe shanks ofthe-studs 87 are positioned. 7v v i Adjacent the outer face of the section84, I

.provide a ring -89 Which is'mounted on the studs .87 and forretaining thering 89. i position t I 90 are positioned thestuds 'For expanding'thepacker head 82, I provide a'conically shaped member 91 which isfposi- .onureduced threaded ends of tione d on the stern 81 and is freely movable thereon. Rotatably connected to the member 91 as at '92. I provide .a hand wheel 93 which has threaded engagement with thestem 81.

Th'einnei ends of the segmentsof. the sections 83 84v ,are'arcu ate as at 94 to conform to the shape ofthe conical membersll and en- ;gage the member 91. For'resiliently urging the segments of the section 83into engagement with the member 91-, I provide a plurality of coiled springs 95. One end of each spring is connected to asegment and'the opposite endsare anchored to the flange 80. Similar coiled springs 96 are connected to the segments of thesection v 84 andanchored tothe ring :89. e

Fromthe foregoing it will be apparent that when the-hand wheel 98. is rotated to move the .member 91 towards the bucket the segments of sitedirection'the member 91 will move away 1 2 the from the bucket and the springs 95 and 96 will move the segments inwardly.

Spaced in the rear of the packer head 82, I provide a slurry remover which is indicated generally at 98. As shown the slurry remover 98 includes a box-like scraper 99 which includes a scraper edge 102 which is adapted to remove the slurry from the inside of the pipe and the curved portion is adapted to direct the slurry into the bucket when the slurry remover 98 is in an operative position.

Extending outwardly from the portion ,99 towards the car 70, I provide an inclined guide member 193. Links 104 are pivotally connected adjacent one end to the portion 99 as at 105 and are pivotally connected adjacent their opposite ends as at 106 to a plate 107. A coiled spring 108 anchored to the plate 107 at one end ment of the portion 99 in one direction I provide astop member 109 on the plate 107. The plate 107 is provided with an arm 110 which is secured to a shaft 112 which extends parallel with the bucket and is mounted in bearings 113 secured to-the bucket and in the bucket plate 66.

For turning the shaft 112, I provide a handle 114 which is positionedadjacent the bucket plate 66 and for securing the shaft 112 in an adjusted position I provide a'set screw 115 on the plate 66.

'Thusit will be apparent that when the shaft 112 is turned in one direction the slurry remover will be moved from an inoperative position to an operative position as shown in Fig. 2 and when the shaft 112 is turned in the opposite direction the slurry remover will be moved from an operative position to an inoperative position.

The slurry remover 98 when in an inoperative position is preferably housed in a compartment 116 which is formed in the bucket by a transverse partition 117.. i

In operation the mold 15 is positioned on the belts 48 of the mold section 12 as previously de- 3 scribed and power is applied to the drive pulleys 35 to thereby rotate the mold 15. The slurry remover 98 is moved to a retracted position as previously described and the bucket is filled with concrete from a suitable hopper and the The bucket 65 may be inverted in any suitable manner but I have shown this as adapted to be done by a motor 119 which is adapted to drive a sprocket 120 secured to the shaft 68 through "the medium of a sprocket chain 121 and a sprocket 122. 'After the concrete has been disthen the car is movedaway from the mold,

thereby moving the packing head through the mold. When the packing head reaches the water ring at the opposite end of the mold the car '70 is reversed and run towards the mold thereby moving the packing head through the mold in a reverse direction to its starting position. As the packing head is thus moved through the mold it packs the concrete to the desired interior diameter.

After the packing head has traveled through the mold and returned to its starting position an operator rotates the hand wheel 93 to move the member 91 away from the bucket whereupon the springs 95 and 96 retract the segments of the packer. The operator then increases the rotating speed of the mold and moves the slurry remover 98 to an operative position as previously described and shown in Fig. 2 and runs the car 70 away from the mold thereby moving the slurry remover through the pipe.

As the slurry remover 98 travels through the moldthe edge 102 thereof removes the slurry from the interior of the pipe and the portion 101 directs it into the compartment 116 of the bucket. If the mold 15 includes water rings 15 at the ends which extend inwardly beyond the inner surface of the pipe the guide member 103 of the slurry remover will ride under the water rings and force the box portion 99 downward against the action of the spring 108 when the slurry remover approaches the water ring.

After the slurry has been removed from the pipe the bucket 65 is moved away from the mold and the bucket is inverted to discharge the slurry from the compartment 16 into any suitable drain device. The mold 15 is then removed from the mold section 12 and the device is ready to form another pipe.

In Figs. 4, 5, and 6, I have indicated a modified form of packet head generally at 125. As shown the device 125 includes a supporting member 126 which is secured to the end of the bucket 65 and has projecting outwardly therefrom a threaded stem 127. The supporting member 126 further includes an undercut channel portion 128 in which are positioned an upwardly extending arm 129 and a downwardly extending arm 130. The arms 129 and 130 are 'each provided with elongated apertures 131 through which the'stem 127 projects.

For moving the arms 129 and 130 in opposite directions to expand the packer head I provide a conically shaped member 132 which is positioned on the stem 127 and is freely movable thereon. Rotatably connected to the member 132 as at 133, I provide a hand wheel 134 which has threaded engagement with the stem 127.'

The upper endof the aperture 131 in the arm 129- is adapted to engage the member 132 and the lower end of the aperture 131 in the arm 130 is adapted to engage the member 132.

For r'etainingthe arms 129 and 130 in cor- 'rect engagement with the member 132, I provide a plurality of coiled springs 135 which are secured at one end to the arm 129 and at the opposite end to the arm 130. The arm 129 is provided with an enlarged head 136 which is arcuately shaped to conform to theinside diameter of a pipe which it is adapted to act upon. The front and rear faces of the head 136 are tapered as at 137 and the head is provided with an elongated aperture 138. Positioned in the aperture 138, ,I provide a trough 139 which extends downwardly toward the bucket 65.

Positioned on the arm 130 and in the undercut channel portion 128, I provide a plate 140 which includes an enlarged head 141. The head 141 is arcuately'shaped similar tothe head 136 and includes similarly tapered faces 142. The plate 140 is provided with an aperture 143 in which a cam member 144 is positioned. The cam memher 144 is rotatably mounted on the 'arm 130 and is provided with an operating handle 145.

When the modified form of packer head 125 is used in making pipe the mold 15 is filled as previously described. The car '70 is then run away from the mold until the packer head 125 is positioned to the inside of the water ring and the car is stopped. An operator then moves the arms 129 and 130 outwardly by rotating the hand wheel 134 in a direction to move the conical member 132 towards the bucket. When the packer heads 136 and 141 have been moved to the correct positions the car is run away from the mold moving the packer head through the mold, thereby packing the concrete to the desired diameter.

When the packer head reaches the opposite end of the mold the car 70 is reversed and run towards the mold moving the packer head through the mold again to its initial position. An operator then turns the cam handle 145 from the full line position in Fig.5 to the dotted line position thereby raising the lower packer head 141 out of contact with the interior surface of the pipe. The mold is then speeded'up and the car '78 is run away from the mold thereby movingthe packer head through the mold. As the packer head travels through the mold this time the head136 removes the slurry from the interior of the pipe and directs it into the trough 139 which discharges into a compartture 13S therein into the trough 139 and thence .into the bucket compartment l l'l.

After the slurry has been removed from the pipe an operator rotates the hand wheel 134 in a direction to move the conical member away from the bucket whereupon the springs 135 move the arms 129 and 130 towards each other to a contracted position. Thereafter the bucket 65 is moved away from the mold and inverted to discharge the slurry from the compartment 147 into any suitable drain and the mold is removed from the mold section 12.

From the foregoing description it will be apparent that I have provided a novel pipe making machine which is simple in construction and eflicient in use. g

Having thus described my invention, what I claim is:

1. In a packer head, means to support said packer head for movementinto and out of said mold, a packer head being circular and including two abutting sections, said sections each including a plurality of radially movable sections, means to support said sections, means to move said sections outwardly and means normally urging said sections inwardly.

2. A pipe making machine wherein means is provided to support and rotate amold and wherein a bucket is movable into and out oi the mold characterized in that a packer head is carried by said bucket, said packer head being each of said sections including a plurality of radially movable segments, means to support said segments, means to move said segments outwardly and resilient means adapted to urge said segments inwardly.

3; In a packer head, means to support said packer head for movement into and out of a mold, saidpacker head including two sections each having head portions, means to simultaneously move said two sections away from' each other, and means to move one of said head portion independent of the other.

4. In a packer head, means to mount the packer head for movement into and out of a mold, said packer head including two sections each having a head portion thereon, means to simultaneously move said two sections; away from each other, means to move one of said head portions independent of the other and means on said other head portion to remove slurry from theinterior of a pipe in a mold and direct said slurry away from the pipe.

5. In a packer head for use in a pipe making machine, a support, a threaded stem mounted on said support, a plurality of packer'head elements, said elements having arcuate peripheries, means to slidably mount each of said elements on said support, each of said elements including a portion disposed adjacent to saidstem, each of said portions including a tapered surface directed towards said stem, a conical member head members, said members being arranged in two sets with the joints of one set staggered with respect to the joints of the other sets,

means to slidably mount all of said members on said support, each of said membersincluding a tapered inner portion, a conical member slidably mounted on said stem and having a surface inclined to correspond with the taper of the said surface on said packer head members, and

means on said threaded stem to move said conical member along the stem whereby said packer head members may be adjusted outwardly and means. to move said members inwardly.

7. In a packer head for use on a pipe making machine, a support, a plurality of packer head elements, means to mount said packer head elements directly on said support, means to move said packer head elements outwardly and other means to move said packer head eleme'ntsinwardly. V h

8. In a packer head for use on a pipe making machine, a support, a plurality of packer head elements, means to mount said packer head elements directly on said support, means to move said packer head elements outwardly,- other means to move said packer head elements inwardly, and a slurry remover'mounted adjacent said packer head elements and adapted to receive slurry when the packer head elements are operated. BOZIDAR J. UKROPINA. 

